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;;; test-custom-text-enclose-public-wrappers.el --- Tests for the interactive enclose wrappers -*- lexical-binding: t; -*-
;;; Commentary:
;; The internal `cj/--*' helpers are covered in the sibling test
;; files. The seven public wrappers were uncovered:
;;
;; cj/surround-word-or-region
;; cj/wrap-word-or-region
;; cj/unwrap-word-or-region
;; cj/append-to-lines-in-region-or-buffer
;; cj/prepend-to-lines-in-region-or-buffer
;; cj/indent-lines-in-region-or-buffer
;; cj/dedent-lines-in-region-or-buffer
;;
;; Tests cover the region-active branch, the thing-at-point-word
;; branch, and the no-word-no-region message branch for the first
;; three; the region-vs-whole-buffer branches for the line-oriented
;; four. `transient-mark-mode' is let-bound so `use-region-p' returns
;; t in batch.
;;; Code:
(require 'ert)
(require 'cl-lib)
(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
(require 'custom-text-enclose)
(defmacro test-cte--with-region (content &rest body)
"Insert CONTENT in a temp buffer, activate region over all of it, eval BODY."
(declare (indent 1))
`(with-temp-buffer
(let ((transient-mark-mode t))
(insert ,content)
(goto-char (point-min))
(push-mark (point) t t)
(goto-char (point-max))
,@body)))
;;; cj/surround-word-or-region
(ert-deftest test-cte-surround-region-wraps-with-string ()
"Normal: an active region is replaced with surround+text+surround."
(test-cte--with-region "hello"
(cl-letf (((symbol-function 'read-string) (lambda (&rest _) "*")))
(cj/surround-word-or-region))
(should (equal (buffer-string) "*hello*"))))
(ert-deftest test-cte-surround-word-at-point ()
"Normal: with no region but a word at point, the word is surrounded."
(with-temp-buffer
(insert "alpha beta")
(goto-char (point-min)) ; point on "alpha"
(cl-letf (((symbol-function 'read-string) (lambda (&rest _) "**")))
(cj/surround-word-or-region))
(should (equal (buffer-string) "**alpha** beta"))))
(ert-deftest test-cte-surround-no-word-no-region-messages ()
"Boundary: no region and no word at point => message, buffer unchanged."
(with-temp-buffer
(insert " ") ; whitespace-only, no word
(goto-char (point-min))
(let ((msg nil))
(cl-letf (((symbol-function 'read-string) (lambda (&rest _) "*"))
((symbol-function 'message)
(lambda (fmt &rest args) (setq msg (apply #'format fmt args)))))
(cj/surround-word-or-region))
(should (string-match-p "No word at point" msg))
(should (equal (buffer-string) " ")))))
;;; cj/wrap-word-or-region
(ert-deftest test-cte-wrap-region-uses-opening-and-closing ()
"Normal: region is replaced with opening+text+closing."
(test-cte--with-region "body"
(let ((calls 0))
(cl-letf (((symbol-function 'read-string)
(lambda (&rest _) (cl-incf calls) (if (= calls 1) "<" ">"))))
(cj/wrap-word-or-region)))
(should (equal (buffer-string) "<body>"))))
(ert-deftest test-cte-wrap-word-at-point ()
"Normal: with no region, the word at point is wrapped."
(with-temp-buffer
(insert "foo bar")
(goto-char (point-min))
(let ((calls 0))
(cl-letf (((symbol-function 'read-string)
(lambda (&rest _) (cl-incf calls) (if (= calls 1) "[" "]"))))
(cj/wrap-word-or-region)))
(should (equal (buffer-string) "[foo] bar"))))
(ert-deftest test-cte-wrap-no-word-no-region-messages ()
"Boundary: no region and no word at point => message, buffer unchanged."
(with-temp-buffer
(insert "")
(let ((msg nil))
(cl-letf (((symbol-function 'read-string) (lambda (&rest _) "x"))
((symbol-function 'message)
(lambda (fmt &rest args) (setq msg (apply #'format fmt args)))))
(cj/wrap-word-or-region))
(should (string-match-p "No word at point" msg)))))
;;; cj/unwrap-word-or-region
(ert-deftest test-cte-unwrap-region-strips-delimiters ()
"Normal: region's opening/closing delimiters are stripped."
(test-cte--with-region "<body>"
(let ((calls 0))
(cl-letf (((symbol-function 'read-string)
(lambda (&rest _) (cl-incf calls) (if (= calls 1) "<" ">"))))
(cj/unwrap-word-or-region)))
(should (equal (buffer-string) "body"))))
(ert-deftest test-cte-unwrap-word-at-point-unchanged-when-no-match ()
"Boundary: word at point without the wrapping delimiters stays unchanged."
(with-temp-buffer
(insert "bare")
(goto-char (point-min))
(let ((calls 0))
(cl-letf (((symbol-function 'read-string)
(lambda (&rest _) (cl-incf calls) (if (= calls 1) "<" ">"))))
(cj/unwrap-word-or-region)))
(should (equal (buffer-string) "bare"))))
(ert-deftest test-cte-unwrap-no-word-no-region-messages ()
"Boundary: no region and no word at point => message, buffer unchanged."
(with-temp-buffer
(let ((msg nil))
(cl-letf (((symbol-function 'read-string) (lambda (&rest _) "x"))
((symbol-function 'message)
(lambda (fmt &rest args) (setq msg (apply #'format fmt args)))))
(cj/unwrap-word-or-region))
(should (string-match-p "No word at point" msg)))))
;;; cj/append-to-lines-in-region-or-buffer
(ert-deftest test-cte-append-to-lines-region ()
"Normal: appends to each line inside the active region only."
(test-cte--with-region "a\nb\n"
(cj/append-to-lines-in-region-or-buffer ";"))
;; The macro doesn't preserve the buffer outside; the assertion happens
;; inline below via a manual setup so we can read the buffer.
)
(ert-deftest test-cte-append-to-lines-region-active ()
"Normal: appends suffix to each line within the active region."
(with-temp-buffer
(let ((transient-mark-mode t))
(insert "a\nb\n")
(goto-char (point-min))
(push-mark (point) t t)
(goto-char (point-max))
(cj/append-to-lines-in-region-or-buffer ";"))
(should (equal (buffer-string) "a;\nb;\n"))))
(ert-deftest test-cte-append-to-lines-whole-buffer ()
"Normal: without an active region, appends to every line of the buffer."
(with-temp-buffer
(insert "x\ny\nz")
(cj/append-to-lines-in-region-or-buffer "!")
(should (equal (buffer-string) "x!\ny!\nz!"))))
;;; cj/prepend-to-lines-in-region-or-buffer
(ert-deftest test-cte-prepend-to-lines-region-active ()
"Normal: prepends prefix to each line within the active region."
(with-temp-buffer
(let ((transient-mark-mode t))
(insert "a\nb\n")
(goto-char (point-min))
(push-mark (point) t t)
(goto-char (point-max))
(cj/prepend-to-lines-in-region-or-buffer "// "))
(should (equal (buffer-string) "// a\n// b\n"))))
(ert-deftest test-cte-prepend-to-lines-whole-buffer ()
"Normal: without a region, prepends to every line."
(with-temp-buffer
(insert "x\ny\nz")
(cj/prepend-to-lines-in-region-or-buffer "> ")
(should (equal (buffer-string) "> x\n> y\n> z"))))
;;; cj/indent-lines-in-region-or-buffer
(ert-deftest test-cte-indent-lines-region-spaces ()
"Normal: indent N spaces per line inside the active region."
(with-temp-buffer
(let ((transient-mark-mode t))
(insert "a\nb\n")
(goto-char (point-min))
(push-mark (point) t t)
(goto-char (point-max))
(cj/indent-lines-in-region-or-buffer 2 nil))
(should (equal (buffer-string) " a\n b\n"))))
(ert-deftest test-cte-indent-lines-whole-buffer-tabs ()
"Boundary: use-tabs non-nil swaps spaces for tabs."
(with-temp-buffer
(insert "a\nb")
(cj/indent-lines-in-region-or-buffer 1 t)
(should (equal (buffer-string) "\ta\n\tb"))))
;;; cj/dedent-lines-in-region-or-buffer
(ert-deftest test-cte-dedent-lines-region ()
"Normal: remove up to N leading whitespace chars per line in the region."
(with-temp-buffer
(let ((transient-mark-mode t))
(insert " a\n b\n")
(goto-char (point-min))
(push-mark (point) t t)
(goto-char (point-max))
(cj/dedent-lines-in-region-or-buffer 4))
(should (equal (buffer-string) "a\nb\n"))))
(ert-deftest test-cte-dedent-lines-whole-buffer-keeps-extra-whitespace ()
"Boundary: only up to COUNT leading whitespace chars are removed."
(with-temp-buffer
(insert " a\n b")
(cj/dedent-lines-in-region-or-buffer 2)
(should (equal (buffer-string) " a\n b"))))
(provide 'test-custom-text-enclose-public-wrappers)
;;; test-custom-text-enclose-public-wrappers.el ends here
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